4/03/2009 @ 5:00PM

In Pictures: U.S. Whitewater Spots Worth A Visit

San Marcos, Texas

San Marcos is in the Texas hill country, located on Interstate 35 between Austin and San Antonio. The town has a whitewater park with some advanced-level kayaking. On the San Marcos River, there’s an 11.5-mile run that has mellow Class I to II rapids.